Ammannia 



Lythraceae 



697 



50 



Map 1466 



Lythrum Salicaria L. 



So 



Map 1467 



Cuphea petiolata ID Koehne 



~~ 3o 



Map 1468 



Decodon verticillatus (L.) Ell 



5474. AMMANNIA [Houston] L. 



1. Ammannia coccinea Rottb. Map 1463. Muddy borders of sloughs, 

 ponds, bayous, reservoirs, and streams and in dredged ditches. Local but 

 often abundant where found. 



N. J., Ohio to S. Dak., southw. to Fla. and Tex. ; also in Mex. and Brazil. 



5475. DIDIPLIS Raf. 



1. Didiplis diandra (Nutt.) Wood. Water Purslane. Map 1464. Very 

 rare. In stagnant water in ponds. 



N. C. to Fla., westw. to Tex., and up the Mississippi Valley to Minn, 

 and Wis. 



5476. LYTHRUM L. 



Flowers solitary in the axils of the upper leaves; petals and stamens 5-7. .1. L. alatum. 



Flowers in a terminal, spicate panicle, crowded, whorled; petals 6; stamens 12, rarely 



g_10 2. L. Salicaria. 



1. Lythrum alatum Pursh. Winged Lythrum. Map 1465. Essentially 

 a plant of the open. Mostly in sandy soil in prairies, marshes, and low 

 borders of lakes and in roadside ditches. Frequent in the lake and prairie 

 areas, becoming infrequent to rare in the southern counties where its 

 habitat is rare. 



Southeastern N. E., Ont. to Minn., southw. to Ga., La., and Colo. 



2. Lythrum Salicaria L. Purple Loosestrife. Map 1466. Reported 

 in 1925 by R. C. Friesner as well established along a small stream about 

 a mile southeast of Irvington in Marion County. Also reported for Lake 

 County by Pepoon. Common in a springy bayou of the Little Elkhart 

 River just north of Middlebury, Elkhart County. 



Nat. of Eu. ; N. S. to Ont., southw. to N. Y., Del., and D. C. 



